The files linked to this reference are the geospatial data created as part of the completion of the baseline vegetation inventory project for the NPS park unit. Current format is ArcGIS file geodatabase but older formats may exist as shapefiles.

Following segmentation, only those lines/polygons that matched the vegetation patterns within the WHMI project area were exported as ArcInfo shapefiles and converted into ArcInfo coverages. The resulting coverages were refined through a series of smoothing routines until no obvious artificial or relict breaks in the lines were visible. When the interpretation effort was considered complete, topology for the final polygon layer was built and attributed and then imported into a spatial database (geodatabase). Each polygon was attributed with a dedicated map unit name, code, and modifier. Polygon-specific modifiers included additional data on the height, density, and patterns of the dominant vegetation. Also polygons of disturbed sites were identified in a comments field along with any notable dominate understory or locally common plant species. Finally other map class data including the NVCS crosswalk and the land-use classes were added.